noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/pɹəʊˈmɛ.θə.ziːn/
Received-Pronunciation:/pɹə-/
General-American:/pɹoʊˈmɛ.θəˌzin/
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -ɛθəziːn
1
noun
Meaning 1
A first-generation H1 receptor antagonist derived from phenothiazine, used as antihistamine and antiemetic medication with strong sedative effects.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, pharmacology, sciences
Examples
For quotations using this term, see Citations:promethazine.
Meaning relationships
Synonyms: Phenergan, pro
Antonyms: none provided
2
noun
Meaning 2
antihistamine (trade name Phenergan) used to treat allergies; also an antiemetic used to treat motion sickness
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.